Period
to 23 January 2019

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Yarn skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Yarn over the 6 months to 23 January 2019 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Yarn Package Manager
Central London > City of London
6 months to
23 Jan 2019
Same period 2018 Same period 2017
Rank 247 248 -
Rank change year-on-year +1 - -
Contract jobs citing Yarn 5 6 0
As % of all contract IT jobs advertised in the City of London 0.073% 0.084% -
As % of the Cloud Services category 0.28% 0.45% -
Number of daily rates quoted 3 6 0
City of London median daily rate £525 £505 -
Median daily rate % change year-on-year +3.96% - -
Central London median daily rate £550 £505 £425
% change year-on-year +8.91% +18.82% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Yarn is in the Cloud Services category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for cloud computing skills.

All Cloud Skills
City of London
Contract vacancies with a requirement for cloud computing skills 1,793 1,339 852
As % of all contract IT jobs advertised in the City of London 26.25% 18.78% 13.81%
Number of daily rates quoted 1,422 1,082 710
City of London median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +11.11%
10th Percentile £319 £319 £350
90th Percentile £675 £638 £625
Central London median daily rate £525 £500 £488
% change year-on-year +5.00% +2.56% +8.33%
Number of hourly rates quoted 14 20 2
City of London median hourly rate £17.50 £17.50 £37.08
Median hourly rate % change year-on-year - -52.81% +53.04%
10th Percentile £12.25 £11.25 £20.48
90th Percentile £23.75 £32.73 £53.46
Central London median hourly rate £18.76 £18.00 £19.92
% change year-on-year +4.19% -9.64% -13.82%

Yarn
Job Vacancy Trend in the City of London

Job postings citing Yarn as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Yarn in the City of London

Yarn
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Yarn in the City of London.

Contractor daily rate trend for Yarn in the City of London

Yarn
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Yarn in the City of London over the 6 months to 23 January 2019.

Contractor daily rate histogram for Yarn in the City of London

For the 6 months to 23 January 2019, IT contractor jobs citing Yarn also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Yarn.

1 4 (80.00%) Sass
1 4 (80.00%) User Experience
1 4 (80.00%) React
1 4 (80.00%) npm
2 3 (60.00%) webpack
2 3 (60.00%) REST
2 3 (60.00%) CSS
3 2 (40.00%) TDD
3 2 (40.00%) HTML
3 2 (40.00%) JavaScript
3 2 (40.00%) Unit Testing
3 2 (40.00%) RESTful
3 2 (40.00%) BDD
3 2 (40.00%) CSS3
3 2 (40.00%) Software Engineering
3 2 (40.00%) GitHub
3 2 (40.00%) Jenkins
3 2 (40.00%) Mobile App
3 2 (40.00%) ES6
3 2 (40.00%) Babel
3 2 (40.00%) React Native
3 2 (40.00%) Redux
4 1 (20.00%) Java 8
4 1 (20.00%) Transpiler
4 1 (20.00%) Digital Economy
4 1 (20.00%) Translating Business Requirements
4 1 (20.00%) Secure Coding
4 1 (20.00%) Vue.js
4 1 (20.00%) Isomorphic Development
4 1 (20.00%) CircleCI

Yarn
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Cloud Services
1 4 (80.00%) npm
2 2 (40.00%) GitHub
3 1 (20.00%) Amazon AWS
3 1 (20.00%) Heroku
Database & Business Intelligence
1 1 (20.00%) SQL Server
Development Applications
1 3 (60.00%) webpack
2 2 (40.00%) Babel
2 2 (40.00%) Jenkins
3 1 (20.00%) CircleCI
3 1 (20.00%) Git (software)
3 1 (20.00%) Karma Test Runner
3 1 (20.00%) Mocha
3 1 (20.00%) NUnit
3 1 (20.00%) Protractor
3 1 (20.00%) SpecFlow
3 1 (20.00%) Subversion
3 1 (20.00%) TeamCity
General
1 1 (20.00%) Digital Economy
1 1 (20.00%) Finance
1 1 (20.00%) Marketing
Job Titles
1 3 (60.00%) Developer
2 2 (40.00%) React Developer
2 2 (40.00%) Senior Software Engineer
2 2 (40.00%) Software Engineer
3 1 (20.00%) Full Stack Developer
3 1 (20.00%) Mobile Software Engineer
3 1 (20.00%) Senior Mobile Software Engineer
3 1 (20.00%) UI Developer
3 1 (20.00%) Web UI Developer
Libraries, Frameworks & Software Standards
1 4 (80.00%) React
1 4 (80.00%) Sass
2 3 (60.00%) CSS
2 3 (60.00%) REST
3 2 (40.00%) CSS3
3 2 (40.00%) HTML
3 2 (40.00%) React Native
3 2 (40.00%) Redux
3 2 (40.00%) RESTful
4 1 (20.00%) .NET
4 1 (20.00%) Express
4 1 (20.00%) HTML5
4 1 (20.00%) NancyFx
4 1 (20.00%) Node.js
4 1 (20.00%) Spring
4 1 (20.00%) Vue.js
4 1 (20.00%) Web Services
Miscellaneous
1 4 (80.00%) User Experience
2 2 (40.00%) Mobile App
Operating Systems
1 1 (20.00%) Android
1 1 (20.00%) Apple iOS
Processes & Methodologies
1 2 (40.00%) BDD
1 2 (40.00%) Software Engineering
1 2 (40.00%) TDD
1 2 (40.00%) Unit Testing
2 1 (20.00%) Agile Software Development
2 1 (20.00%) Android Development
2 1 (20.00%) API Design
2 1 (20.00%) BEM - Block Element Modifier
2 1 (20.00%) Continuous Integration
2 1 (20.00%) Event-Driven Architecture
2 1 (20.00%) Front End Development
2 1 (20.00%) Integration Testing
2 1 (20.00%) iOS Development
2 1 (20.00%) Kanban
2 1 (20.00%) Microservices
2 1 (20.00%) Mobile Application Development
2 1 (20.00%) Online Marketing
2 1 (20.00%) Open Source
2 1 (20.00%) Translating Business Requirements
2 1 (20.00%) User Stories
Programming Languages
1 2 (40.00%) ES6
1 2 (40.00%) JavaScript
2 1 (20.00%) Java
2 1 (20.00%) Java 8
2 1 (20.00%) PowerShell
2 1 (20.00%) Shell Script
2 1 (20.00%) TypeScript
Vendors
1 1 (20.00%) Microsoft